Use the guide well
What matters before the feature list.
These field notes explain the product, workflow, and tradeoffs that can change the decision.
Field noteWho Seller Research Desk is for
Seller Research Desk is an independent guide for Amazon sellers (private label, wholesale and online arbitrage), brand owners and agencies who have to choose which research subscription to pay for. It asks which tool fits which stage, what each costs over a full year, and how far the estimated sales numbers can be trusted. Everything is read from vendor pages, product explainers and terms, plus Amazon and regulator sources, dated October 29, 2026. Start with the SmartScout review or go straight to the best research tools by stage.
Field noteWhere SmartScout fits and where it does not
SmartScout starts from brands, sellers and subcategories and works down to products, which suits wholesale and arbitrage sellers, brand owners and agencies. Helium 10 starts from products and listings and adds keyword, advertising and operations tools. The pricing guide shows how SmartScout plans are built by data level and how to work out a year, and SmartScout vs Helium 10 sets it beside an all-in-one seller toolkit.
Field notePick by stage, then do the yearly sum
A new seller checking one idea can often start with Amazon's own Product Opportunity Explorer and a free extension. Paid tools earn their place when you compare many niches, resell brands or build lists. For each tool, take the rate in the billing view you would use, multiply by twelve and add extra users and add-ons. How to research an Amazon niche gives a checklist to run inside a money-back window.
Field noteHow these pages are sourced
Plan facts come from each vendor's own pages and are dated, because plans, bands and rules change. Where a vendor page is silent or its pages disagree, the guide says so. Accuracy figures, user counts and customer results are the vendors' own claims and are labeled that way, in line with the FTC's endorsement guides. Prices stay on the vendors' live pages and are not repeated here. This is not financial, tax or legal advice, and research results depend on your own products and market.